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The EMF of Weston standard cell is measured using Potentiometer.

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1 answer 17 views

A d.c. potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18V obtains balance at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf0fthe test cell is  A)1.00V B)1.34V C)1.50V D)1.70V 

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In a standard multimeter for measuring AC voltage, parameter of _____ voltage is measured

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Explain how force is measured using load cell

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The self inductance of a coil can be measured using (A) Wien’s Bridge (B) Schering Bridge (C) Anderson’s Bridge (D) Wheatstone Bridge

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
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When the voltage across a battery is measured using a D.C potentiometer, the reading shows 1.08 V. But when the same voltage is measured using a Permanent Magnet Moving Coil (PMMC) voltmeter, the voltmeter reading shows 0.99 V. If the resistance of the voltmeter is 1100 Ohm , the internal resistance of the battery, in Ohm , is (A) 150 (B) 100 (C) 50 (D) 200

asked Apr 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 10 views

Why the emf of a cell is always greater than its terminal voltage? Explain the same.

asked Jul 5 by Shimroz123
1 answer 25 views

Explain the advantages and disadvantages of using memory I/O and standard I/O.

asked Mar 26, 2018 in Unit 3 by Quiz
1 answer 23 views

A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is then connected in parallel with the variable capacitor and the same reading was obtained when the variable capacitor is readjusted to a value of 200 pF. The value of Cx in pF is  A) 100 B) 200 C) 300 D) 500

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 10 views

Draw and explain the measurement of torque using Torque Cell

asked Sep 13, 2018 by Shimroz123
0 answers 46 views

Using the AutoSum button will replace in the selected cell….  (1) the sum of values in the cell’s column (2) nothing until you select a range of cells (3) the sum of the cell’s row unless you change the range (4) a formula which will add values in the range Excel guesses you want to add 

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 69 views

You can copy cell formats from one cell to another by using the  (1) Backspace key (2) Default font (3) Format painter (4) Formatting toolbar 

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 17 views

Using the AutoSum button will replace the selected cell with  (1) the sum of values in the cell’s column (2) nothing until you select a range of cells (3) the sum of the cell’s row unless you change the range (4) a formula which will add values in the range Excel guesses you want to add.

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 8 views

The sensitivity of a voltmeter using 0-5 mA meter movement is (a) 200 Ω/V (b) 150 Ω/V (c) 100 Ω/V (d) 50 Ω/V 

asked May 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
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Intensity of Light can be measured using  A) Anemometer B) IR Thermometer C) Clamp on Meter D) Lux Meter

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 9 views

Explain how AC current is measured using hall effect transducer. 

asked Sep 13, 2018 by Shimroz123
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Explain how level is measured by using float?

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Describe how humidity is measured by using hair type hygrometer.

asked Sep 9, 2018 by Shimroz123
1 answer 9 views

Liquid flow rate is measured using (A) a pirani gauge (B) a pyrometer (C) an orifice plate (D) a bourdon tube

asked Apr 26, 2018 in Electronics Engineering by Shimroz123
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The fast Fourier transform (FFT) analysis can be measured using (a) distortion meter (c) power meter (b) spectrum analyser (d) data acquisition system

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 17 views

The power delivered to a 3-phase load can be measured by the use of two wattmeters only when the  (a) load is unbalanced (b) load is balanced (c) three phase load is connected to the source through three wires (d) three phase load is connected to the source through four wires

asked May 13, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 70 views

The power in a 3-phase load is measured by two watt meters. If one watt meter reads zero, then the load power factor is (A) Zero (B) 0.5 (C ) 0.866 (D) unity 

asked Jun 4, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 11 views

True value has been 50 whereas measured value is 40 then the percentage error in the reading will be ______.  (A) 20% (B) 40% (C) 50% (D) 30%

asked May 8, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 3 views

Draw and explain force or weight measurement using load cell. 

asked Sep 13, 2018 by Shimroz123
1 answer 8 views

The measurement range of an ammeter can be increased by using a:

asked May 22, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 18 views

Two non -inverting amplifiers, one having a unity gain and the other having again of twenty are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain twenty has

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 26 views

When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because  (A) Cables have a low value of capacitance which draws a high value of charging current (B) Cables have a low value of initial resistance (C) Cables have a high value of capacitance which draws a high value of charging current (D) Cables have a low value of capacitance and initial resistance

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 22 views

Very small displacements are effectively measured using

asked May 14, 2018 in Digital Instrumentation by Shimroz123
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Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

asked Apr 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123

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